Low Noise, Wide Dynamic Range Define 14-Bit, 125-Msample/s ADC

Feb. 2, 2004

Featuring more than half the power dissipation of other available 14-bit analog-to-digital converters (ADCs), Texas Instruments' ADS5500 125-Msample/s ADC maintains high performance with resolution higher than any comparable device. Also, its power dissipation is only 750 mW at a 3.3-V single-supply operation. The ADC's pipeline architecture enables it to deliver a 750-MHz bandwidth with 70 dB of signal-to-noise ratio (SNR) and 82 dB of spurious-free dynamic range (SFDR) at a 100-MHz input frequency as well.

The unit includes an internal reference, accepts a differential 2-V p-p full-scale range analog input, and has a Data Ready output clock. This suits it for communications applications like wireless infrastructures, software-defined radios, and broadband wireless systems. The ADS5500 also will find use in automatic-test-equipment systems, waveform analysis, telecom testing, medical magnetic-resonance imaging (MRI), high-definition cameras, high-end scanners, and video inspection.

Available now in a 64-TQFP PowerPad package, samples go for $95 each in 1000-piece quantities (suggested resale pricing). Evaluation modules also are available. Production quantities are slated for the first quarter.

Texas Instruments Inc.www.ti.com (800) 477-8924

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About the Author

Roger Allan

Roger Allan is an electronics journalism veteran, and served as Electronic Design's Executive Editor for 15 of those years. He has covered just about every technology beat from semiconductors, components, packaging and power devices, to communications, test and measurement, automotive electronics, robotics, medical electronics, military electronics, robotics, and industrial electronics. His specialties include MEMS and nanoelectronics technologies. He is a contributor to the McGraw Hill Annual Encyclopedia of Science and Technology. He is also a Life Senior Member of the IEEE and holds a BSEE from New York University's School of Engineering and Science. Roger has worked for major electronics magazines besides Electronic Design, including the IEEE Spectrum, Electronics, EDN, Electronic Products, and the British New Scientist. He also has working experience in the electronics industry as a design engineer in filters, power supplies and control systems.

After his retirement from Electronic Design Magazine, He has been extensively contributing articles for Penton’s Electronic Design, Power Electronics Technology, Energy Efficiency and Technology (EE&T) and Microwaves RF Magazine, covering all of the aforementioned electronics segments as well as energy efficiency, harvesting and related technologies. He has also contributed articles to other electronics technology magazines worldwide.

He is a “jack of all trades and a master in leading-edge technologies” like MEMS, nanolectronics, autonomous vehicles, artificial intelligence, military electronics, biometrics, implantable medical devices, and energy harvesting and related technologies.